The fastest way is to get a multimeter and set is on DC volts, get to the battery and start the bike place the leads of the meter on the battery posts and rev the motor to about 2000 RPMs you should get a reading of 13-15 volts if the system is working if you dont get that reading then you will have to check the stator,and regulator.

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Based on what you are saying here ... I suspect you have a faulty ground. Make sure you have a good ground.

You can test this by making a temporary ground with a wire connecting from the metal case of the radio to the neg side of your battery. This may not be a teller since you say the trouble is intermittent. Your radio will probably never give you the chance to check it peacefully. It will always work when you have the tools out!

If in doubt, install a good ground. Use a very flexible wire, at least #14 or heavier, stranded or woven NOT solid. Fasten the new ground onto the metal case of your radio - make sure you don't create any shorts. Hook the other end to a known good ground on the frame, NOT the handlebars. To make absolutely sure, go to the neg side of your battery with your new ground. Also, make sure your antenna has a good ground and is not shorting to that ground (bad leadin wire).

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Hi Kjfreeland, I am sorry you can't find the first and best tool you ever bought for your Honda but despair not for a mere $15.00 you can download another one. For more information about your issue, please visit the websites below. Good luck and have a nice day.1999 Honda Motorcycle Service Repair Workshop Manuals

If this Valkyrie has been sitting and not started for a while my guess would be clogged slow jets in the 3 left bank carbs. You could run some Techron fuel additive through it but I am thinking that the carbs need to be removed, disassembled and cleaned. That is what I had to do to my 1999 Valkyrie Interstate.

Based on what you are saying here ... I suspect you have a faulty ground. Make sure you have a good ground.

You can test this by making a temporary ground with a wire connecting from the metal case of the radio to the neg side of your battery. This may not be a teller since you say the trouble is intermittent. Your radio will probably never give you the chance to check it peacefully. It will always work when you have the tools out!

If in doubt, install a good ground. Use a very flexible wire, at least #14 or heavier, stranded or woven NOT solid. Fasten the new ground onto the metal case of your radio - make sure you don't create any shorts. Hook the other end to a known good ground on the frame, NOT the handlebars. To make absolutely sure, go to the neg side of your battery with your new ground. Also, make sure your antenna has a good ground and is not shorting to that ground (bad leadin wire).

if alternator is fine as you say next thing to look at is the voltage regulator,it may have gone open circuit,whereby it wont work,another thing is your battery klight on the dah still working,because if this is not working the alternator wont work(same as a car)as the alternator needs to detect 12v at the diode before it will work,,,hope this helps